From: Oleksandr Zharov <alex.zeed@gmail.com>
Date: Sat, 15 Apr 2023 20:23:41 +0000 (+0300)
Subject: ramips: add Xiaomi RA75 red signal led
X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fstaging%2Fdedeckeh.git;a=commitdiff_plain;h=998c34d3fee5ef8468595c809f14e21c3016326c

ramips: add Xiaomi RA75 red signal led

RA75 has 5 physical LEDs under 2 indicators, mixed with light pipes:
Indicator "System":
  GPIO0: blue
  GPIO2: amber
Indicator "Signal":
  GPIO44: blue
  GPIO37: amber
  GPIO46: red

All except GPIO46 were already added by Jo Deisenhofer. GPIO46 is used for UART1 by
default, so it needs additional pin control change in devicetree to be operational.
Verified on my RA75.

Signed-off-by: Oleksandr Zharov <alex.zeed@gmail.com>
---

diff --git a/target/linux/ramips/dts/mt7628an_xiaomi_mi-ra75.dts b/target/linux/ramips/dts/mt7628an_xiaomi_mi-ra75.dts
index 7865334489..173bcd992d 100644
--- a/target/linux/ramips/dts/mt7628an_xiaomi_mi-ra75.dts
+++ b/target/linux/ramips/dts/mt7628an_xiaomi_mi-ra75.dts
@@ -32,6 +32,10 @@
 			label = "amber:signal";
 			gpios = <&gpio 37 GPIO_ACTIVE_LOW>;
 		};
+		led_signal_red: signal_red {
+			label = "red:signal";
+			gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
+		};
 	};
 
 	keys {
@@ -51,6 +55,13 @@
 
 };
 
+&state_default {
+	gpio {
+		groups = "gpio", "refclk", "wdt", "wled_an", "uart1";
+		function = "gpio";
+	};
+};
+
 &partitions {
 	partition@60000 {
 		label = "overlay";